<script lang="ts">
  import { onDestroy, onMount } from "svelte";
  import { logMessages } from "../../../lib/src/mock_and_interop/stores";
  import { reactive, type ReactiveInstance } from "../../../lib/src/dataobject/reactive";
  import { Logger } from "../../../lib/src/common/logger";
  import { $msg as msg, currentLang as lang } from "../../../lib/src/common/i18n.ts";

  let unsubscribe: () => void;
    let messages = $state([] as string[]);
    let wrapRight = $state(false);
    let autoScroll = $state(true);
    let suspended = $state(false);

    type Props = {
        close: () => void;
    };
    let { close }: Props = $props();
    // export let close: () => void;
  function updateLog(logs: ReactiveInstance<string[]>) {
      const e = logs.value;
      if (!suspended) {
          messages = [...e];
          setTimeout(() => {
              if (scroll) scroll.scrollTop = scroll.scrollHeight;
          }, 10);
      }
  }
  onMount(async () => {
      const _logMessages = reactive(() => logMessages.value);
      _logMessages.onChanged(updateLog);
      Logger(msg("logPane.logWindowOpened", {}, lang));
      unsubscribe = () => _logMessages.offChanged(updateLog);
  });
  onDestroy(() => {
      if (unsubscribe) unsubscribe();
  });
  let scroll: HTMLDivElement;
    function closeDialogue() {
        close();
    }
</script>

<div class="logpane">
  <!-- <h1>{msg("logPane.title", {}, lang)}</h1> -->
  <div class="control">
      <div class="row">
          <label>
              <input type="checkbox" bind:checked={wrapRight} />
              <span>{msg("logPane.wrap", {}, lang)}</span>
          </label>
          <label>
              <input type="checkbox" bind:checked={autoScroll} />
              <span>{msg("logPane.autoScroll", {}, lang)}</span>
          </label>
          <label>
              <input type="checkbox" bind:checked={suspended} />
              <span>{msg("logPane.pause", {}, lang)}</span>
          </label>
            <span class="spacer"></span>
            <button onclick={() => closeDialogue()}>Close</button>
      </div>
  </div>
  <div class="log" bind:this={scroll}>
      {#each messages as line}
          <pre class:wrap-right={wrapRight}>{line}</pre>
      {/each}
  </div>
</div>

<style>
  * {
      box-sizing: border-box;
  }
  .logpane {
      display: flex;
      height: 100%;
      flex-direction: column;
  }
  .log {
      overflow-y: scroll;
      user-select: text;
        -webkit-user-select: text;
      padding-bottom: 2em;
  }
  .log > pre {
      margin: 0;
  }
  .log > pre.wrap-right {
      word-break: break-all;
      max-width: 100%;
      width: 100%;
      white-space: normal;
  }
  .row {
      display: flex;
      flex-direction: row;
      justify-content: flex-end;
  }
  .row > label {
      display: flex;
      align-items: center;
      min-width: 5em;
      margin-right: 1em;
  }
</style>
